diff --git a/x3270.spec b/x3270.spec
index 020f50c..7e00873 100644
--- a/x3270.spec
+++ b/x3270.spec
@@ -71,6 +71,14 @@ rm -rf wpr3287* wc3270* ws3270* tcl3270*
 %patch0 -p1
 %patch1 -p1
 
+# update for aarch64 (#926737)
+for i in x3270-%{majorver} c3270-%{majorver} pr3287-%{majorver} s3270-%{majorver}; do
+( cd $i
+cp -p %{_datadir}/automake-*/config.{guess,sub} .
+autoconf
+)
+done
+
 
 %build
 # Fix end of line encodings